From the 1960s to the 1970s, Hristos Kokkoris was one of leading Greek chess players. He won the Greek Chess Championship three times: in 1962, 1969, and 1970. In 1969, in Athens, Hristos Kokkoris participated in the World Chess Championship European Zonal Tournament, where he shared 13th–15th place.[1]
Hristos Kokkoris played for Greece in the Chess Olympiads:[2]
- In 1962, at the first board in the 15th Chess Olympiad in Varna (+4, =3, -10),
- In 1964, at the second board in the 16th Chess Olympiad in Tel Aviv (+6, =1, -8),
- In 1968, at the first reserve board in the 18th Chess Olympiad in Lugano (+7, =4, -5).
Hristos Kokkoris played for Greece in the European Team Chess Championship preliminaries:[3]
- In 1970, at the second board in the 4th European Team Chess Championship preliminaries (+0, =1, -3).
